-- @testpoint: opengauss关键字symmetric(保留)，作为函数名,部分测试点合理报错

--关键字不带引号-失败
drop function if exists symmetric;
create function symmetric(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/

--关键字带双引号-成功
drop function if exists "symmetric";
create function "symmetric"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function "symmetric";

--关键字带单引号-合理报错
drop function if exists 'symmetric';
create function 'symmetric'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `symmetric`;
create function `symmetric`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/